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单词
ultrapurity
释义
WordReference Random House Unabridged Dictionary of American English © 2024
ul•tra•pure
(ul′trə pyŏŏr
′
),
USA pronunciation
adj.
extremely pure, esp. without impurities:
ultrapure silicon for semiconductors.
ultra
- +
pure
1960–65
ul′tra•pure
′
ly
,
adv.
ul′tra•pu
′
ri•ty
,
n.
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welkin
welkom
we'll
well
well-advised
well-affected
welland
welland canal
welland ship canal
well-appointed
wellaway
well-balanced
well-behaved
well-being
wellbeing
well-beloved
well-born
wellborn
well-bred
well-chosen
well-connected
well-content
well-defined
well-disposed
welldoing
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更新时间:2026/2/5 10:30:33